Bearing Capacity (Daya Dukung Tanah)

Size: px
Start display at page:

Download "Bearing Capacity (Daya Dukung Tanah)"

Transcription

1 Bearing Capacity (Daya Dukung Tanah) Dr. Ir.H. Erizal, MAgr

2 Definisi Daya dukung yang diizinkan (allowable bearing cap.) tekanan maksimum yang dapat diaplikasikan ke tanah dimana 2 kondisi diatas dipenuhi. Daya dukung batas (ultimate bearing cap.) tekanan minimum yang menyebabkan keruntuhan geser (shear failure) pada tanah pendukung secara cepat ke bawah.

3 Footing Performance Vertical Load Vertical movement Elastic maximum tolerable settlement safe load Plastic Serviceability Ultimate Limit State Maximum allowable load = min [safe load, max service load ] maximum service load Plunging Failure ultimate capacity

4 Limit States Serviceability Ultimate

5 Serviceability Limit State Maximum load at which structure still performs satisfactorily : Settlement Horizontal movement Rotation Sliding Applied Load Force (kn)

6 Bearing Pressure Definitions Allowable Bearing Pressure q a = < qf s (settlement) / A F Plan Area, A Ultimate Bearing Capacity q ult = F fail / A

7 Foundation Failure Rotational Failure Force Soil Heave Resistance

8 Generalized Shear Failure q Soil Failure Lines Settlement rigid radial shear passive log spiral

9 Local Shear Failure q minor surface heave only Settlement Medium dense or firm soils

10 Punching Shear Failure q No surface heave Settlement Loose or Soft Soils

11 Methods for calculating bearing capacity Full scale load tests Load tests on model footings Limit equilibrium analysis Detailed stress analysis such as the FEM method

12 Limit equilibrium analysis solutions for weightless soils: Solutions with φ = 0 : Prandtl smooth punch : q ult = 5.14c Prandtl rough punch : q ult = 5.7c Solutions with φ 0 : Rough punch passive active log spiral

13 Bearing Capacity for real soils Exact, theoretical analytical solutions have only been computed for special cases - e.g. soils with no weight, no frictional strength, φ or no cohesion, c. Approximate solutions have been derived by combining solutions for these special cases. The first solution was by Terzaghi (1943) - father of soil mechanics. Others later modified this solution. The failure mechanism corresponds to general failure. Corrections are applied to check for the possibility of local or punching shear failure.

14 Jenis pondasi berdasarkan kedalamannya 1. Pondasi dangkal (shallow foundation) bila kedalaman pondasi, Df, lebih kecil dibanding lebar pondasi, B 2. Pondasi dalam (deep foundation) bila kedalaman pondasi, Df, lebih besar/dalam dibanding lebar pondasi, B

15 Terzaghi s Bearing Capacity Eqn. For strip footings: q ult = c.n c + σ ZD.N q + 0.5γ BN γ φ c

16 Terzaghi s Bearing Capacity Eqn. For strip footings: q ult = c.n c + q.n q + 0.5γ BN γ φ c D f q = γ.d γ.d f B soil density, γ (kn/m 3 )

17 Terzaghi s Bearing Capacity Eqn. For strip footings: q ult = c.n c + q.n q + 0.5γ BN γ Bearing Capacity Factors for soil cohesion, surcharge and weight functions of friction angle, φ determine by equation or from graph

18 40 N c N q N γ Ø in Degrees N c and N q N γ

19 General Bearing Capacity Eqn. (1973, 1975) Based on theoretical and experimental work: q ult = c.n c F cs F cd F ci + q.n q F qs F qd F qi + 0.5γBN γ F γs F γd F γi φ c

20 General Bearing Capacity Eqn. q ult = c.n c F cs F cd F ci + q.n q F qs F qd F qi + 0.5γBN γ F γs F γd F γi φ c D f q = γ.d σ ZD = f γ.d B soil density, γ (kn/m 3 )

21 General Bearing Capacity Eqn. q ult = c N c F cs F cd F ci + qn q F qs F qd F qi + 0.5γBN γ F γs F γd F γi Bearing Capacity Factors for soil cohesion, surcharge and weight functions of friction angle, φ determine by equation or from graph or Table 3.3

22 General Bearing Capacity Eqn. q ult = c N c F cs F cd F ci + qn q F qs F qd F qi + 0.5γBN γ F γs F γd F γi Correction factors for footing shape (s), footing depth (d) load inclination (i ); could have additional base inclination (b), and ground inclination (g) determine from appropriate equations

23 General Bearing Capacity Factors (Table 3.3) Nγ Hansen 40 Friction angle (degree) Nγ Meyerhof Nc 10 Nq Nc, Nq and Nγ

24 Wall on Strip Footing Shape Factors Bird s s Eye View Column on Square Footing For non-strip footings : F cs, F cq, F γs 1 Failure lines Failure lines

25 Wall on Strip Footing Depth Factors For buried footings : F cd, F qd, F γd 1 q = γ.d f increased strength failure generally line length increases with depth

26 V = kn H = 423 kn Inclination Factors For inclined loads : F ci, F qi, F γi 1 Inclined load = 1000 kn Load inclination, θ = 25 o Failure surface shallower and shorter

27 Terzaghi or General General is more accurate Applies to a broader range of loading and geometry conditions General is more complicated

28 Contoh 1 Sebuah pondasi bujur sangkar dengan sisi 2.25 m diletakkan pada kedalaman 1.5 m pada pasir< di mana parameter kuat gesernya c =0 dan ø= 38 o. Tentukan daya dukung ultimit (a) bila muka air tanah berada di bawah elevasi pondasi, (b) jika muka air tanah berada pada permukaan tanah. Berat isi pasir di atas muka air tanah adalah 18 kn/m 3, berat isi jenuhnya 20 kn/m 3. Pondasi bujur sangkar q f = 0.4γBN γ + γdn q ø= 38 o N γ = 67, N q = 49 q f = (0.4 x 18 x 2.25 x 67) + (18 x 1.5 x 49) = = 2408 kn/m 2 Daya dukung di bawah muka air: q f = 0.4γ BN γ + γ DN q γ = γ sat γ w = = 10.2 kn/m 3 q f = (0.4 x 10.2 x 2.25 x 67) + (10.2 x 1.5 x 49) = = 1365 kn/m 2

29 Contoh 2 Sebuah pondasi jalur didesain memikul beban 800 kn/m pada kedalaman 0.7 m pada pasir berkerikil. Parameter kekuatan geser yang tersedia adalah c =0 danø =40 o. Tentukan lebar pondasi bila faktor keamanan = 3 dan diasumsikan mungkin muka air tanah mencapai pondasi. Berat isi pasir adalah 17 kn/m 3, berat isi jenuhnya 20 kn/m 3. ø =40 o N γ =95 dan N q =64 q f = ½γ BN γ + γbn q = (½ x 10.2 x B x 95) + (17 x 0.7 x 64) = 485B q nf =q f γd ; q n = q - γd ; F = q nf / q n = 485B (17 x 0.7) = (800/B) (17 x 0.7) = 485B = (800/B) 12 1 (485B + 750) = B B = 1.55 m

30 Ultimate Bearing Capacity of Shallow Footings with Concentric Loads

31 Ultimate Bearing Capacity with Ground Water Effect

32 Example: Determine the Allowable Bearing Capacity for A Rough Base Square Footing Using A Safety Factor Of 3. d = D = 5 γ T = 125 pcf B = 6 γ sub = 63 pcf φ = 20 c = 500 psf

33 Solution: Assuming A General Shear Condition, Enter the Bearing Capacity Chart for φ= 20 and Read N c = 14, N q = 6, Nγ = 3. Also note that formula for bearing capacity must account for the square footing and the water table within the failure zone. q ult B = ( )CNc + [ γ subd + ( γt γsub )d]nq + 0.4γ subbnγ L = ( 1.3)(500)14 + [63(5) + (125 63)5] (63)(6)(3) = q ult = 13,300psf q all = q ult 3 = 13, , 430 psf

34 What is the Effect on Bearing Capacity of Excavation of Soil Cover Over a Spread Footing?

35 Student Mini-Exercise on Bearing Capacity q ult = cn c + P o N q + 1/2 γ BN γ Properties and Dimensions (Assume Continuous Rough Footing) γ = Unit Weight D = Footing Embedment B = Footing Width Cohesive Soil φ = 0 c = 1000psf q ult (psf) Cohesionless Soil φ = 30 c = 0 q ult (psf) A. Initial Situation γ T = 120 pcf, D = 0, B = 5, deep water table B. Effect of embedment D = 5, γ T = 120 pcf, B = 5, deep water table C. Effect of width, B = 10, γ T = 120 pcf, D = 0, deep water table D. Effect of water table at surface, γ sub = 57.6 pcf, D = 0, B = 5

36 Student Mini-Exercise on Bearing Capacity q ult = cn c + P o N q + 1/2 γ BN γ Properties and Dimensions (Assume Continuous Rough Footing) γ = Unit Weight D = Footing Embedment B = Footing Width Cohesive Soil φ = 0 c = 1000psf q ult (psf) Cohesionless Soil φ = 30 c = 0 q ult (psf) A. Initial Situation γ T = 120 pcf, D = 0, B = 5, deep water table B. Effect of embedment D = 5, γ T = 120 pcf, B = 5, deep water table C. Effect of width, B = 10, γ T = 120 pcf, D = 0, deep water table D. Effect of water table at surface, γ sub = 57.6 pcf, D = 0, B =

37 Footing Bearing Capacity Objective: STUDENT EXERCISE NO.5 Find the Allowable Bearing Capacity Using a Safety Factor = 3, for the Condition Shown Below. Rough Base Footing Final Grade Sand γ = 115 pcf φ = 35 C = 0

38 Length Width 50 Footing = = 5 > 9 Water Level Width 30 4 = = SOLUTION TO EXERCISE No. 5 Use Rectangular Formula No Water Effect = 2.6 > 1.5 Footing Widths below Footing Base = (115)(4)(37) + (0.4)(115)(10)(42) = 17, ,320 = 36,340 PSF 10 qult = γ DNq + 0.4γ BN γ Qall 36,340 = = 12,113 psf 3

39 How is bearing capacity theory related to the rule of thumb equation for stability; SAFETY FACTOR = 6 C γ H Soft clay layer Compact Sand H γ = Unit Weight cohesion = C

40 Spread Footing Design Bearing Capacity Explain how footing embedment, width, and water table affect footing bearing capacity Activities: Bearing capacity analysis

FOUNDATION DESIGN. Instructional Materials Complementing FEMA 451, Design Examples

FOUNDATION DESIGN. Instructional Materials Complementing FEMA 451, Design Examples FOUNDATION DESIGN Proportioning elements for: Transfer of seismic forces Strength and stiffness Shallow and deep foundations Elastic and plastic analysis Foundation Design 14-1 Load Path and Transfer to

More information

GEOTECHNICAL ENGINEERING FORMULAS. A handy reference for use in geotechnical analysis and design

GEOTECHNICAL ENGINEERING FORMULAS. A handy reference for use in geotechnical analysis and design GEOTECHNICAL ENGINEERING FORMULAS A handy reference for use in geotechnical analysis and design TABLE OF CONTENTS Page 1. SOIL CLASSIFICATION...3 1.1 USCS: Unified Soil Classification System...3 1.1.1

More information

Finite Element Analysis of Elastic Settlement of Spreadfootings Founded in Soil

Finite Element Analysis of Elastic Settlement of Spreadfootings Founded in Soil Finite Element Analysis of Elastic Settlement of Spreadfootings Founded in Soil Jae H. Chung, Ph.D. Bid Bridge Software Institute t University of Florida, Gainesville, FL, USA Content 1. Background 2.

More information

Shallow Foundation Analysis on Heterogeneous Soil Formation in the Niger Delta of Nigeria

Shallow Foundation Analysis on Heterogeneous Soil Formation in the Niger Delta of Nigeria Shallow Foundation Analysis on Heterogeneous Soil Formation in the Niger Delta of Nigeria Akpila, S.B Department of Civil Engineering Rivers State University of Science & Technology, PortHarcourt. Eluozo,

More information

CE 366 SETTLEMENT (Problems & Solutions)

CE 366 SETTLEMENT (Problems & Solutions) CE 366 SETTLEMENT (Problems & Solutions) P. 1) LOAD UNDER A RECTANGULAR AREA (1) Question: The footing shown in the figure below exerts a uniform pressure of 300 kn/m 2 to the soil. Determine vertical

More information

VERTICAL STRESS INCREASES IN SOILS TYPES OF LOADING

VERTICAL STRESS INCREASES IN SOILS TYPES OF LOADING 14.53 THEORETICAL SOIL MECHANICS VERTICAL STRESS INCREASES IN SOILS TYPES OF LOADING Point Loads (P) Line Loads (q/unit length) Figure 6.11. Das FGE (005). Examples: -Posts Figure 6.1. Das FGE (005). Examples:

More information

13. AN INTRODUCTION TO FOUNDATION ENGINEERING

13. AN INTRODUCTION TO FOUNDATION ENGINEERING 13-1 13. AN INTRODUCTION TO FOUNDATION ENGINEERING 13.1 TYPES OF FOUNDATIONS The foundation is that portion of a structure that transmits the loads from the structure to the underlying foundation material.

More information

Worked Example 2 (Version 1) Design of concrete cantilever retaining walls to resist earthquake loading for residential sites

Worked Example 2 (Version 1) Design of concrete cantilever retaining walls to resist earthquake loading for residential sites Worked Example 2 (Version 1) Design of concrete cantilever retaining walls to resist earthquake loading for residential sites Worked example to accompany MBIE Guidance on the seismic design of retaining

More information

TYPES OF FOUNDATIONS

TYPES OF FOUNDATIONS TYPES OF FOUNDATIONS 1 Foundation Systems Shallow Foundation Deep Foundation Pile Foundation Pier (Caisson) Foundation Isolated spread footings Wall footings Combined footings Cantilever or strap footings

More information

Terzaghi's Bearing Capacity Equations

Terzaghi's Bearing Capacity Equations Terzaghi's Bearing Capacity Equations Bearing capacity equation Bearing capacity factors Bearing capacity Chart Example 1: trip footing on cohesionless soil Example 2: quare footing on clay soil Example

More information

VERTICAL STRESS INCREASES IN SOIL TYPES OF LOADING. Point Loads (P) Line Loads (q/unit length) Examples: - Posts. Examples: - Railroad track

VERTICAL STRESS INCREASES IN SOIL TYPES OF LOADING. Point Loads (P) Line Loads (q/unit length) Examples: - Posts. Examples: - Railroad track VERTICAL STRESS INCREASES IN SOIL Point Loads (P) TYPES OF LOADING Line Loads (q/unit length) Revised 0/015 Figure 6.11. Das FGE (005). Examples: - Posts Figure 6.1. Das FGE (005). Examples: - Railroad

More information

ENCE 4610 Foundation Analysis and Design

ENCE 4610 Foundation Analysis and Design This image cannot currently be displayed. ENCE 4610 Foundation Analysis and Design Shallow Foundations Total and Differential Settlement Schmertmann s Method This image cannot currently be displayed. Strength

More information

Effect of shape on bearing capacity of embedded footings on reinforced foundation beds over soft non-homogeneous ground

Effect of shape on bearing capacity of embedded footings on reinforced foundation beds over soft non-homogeneous ground Japanese Geotechnical Society Special Publication The 15th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering Effect of shape on bearing capacity of embedded footings on reinforced

More information

PILE FOUNDATIONS FM 5-134

PILE FOUNDATIONS FM 5-134 C H A P T E R 6 PILE FOUNDATIONS Section I. GROUP BEHAVIOR 6-1. Group action. Piles are most effective when combined in groups or clusters. Combining piles in a group complicates analysis since the characteristics

More information

METHODS FOR ACHIEVEMENT UNIFORM STRESSES DISTRIBUTION UNDER THE FOUNDATION

METHODS FOR ACHIEVEMENT UNIFORM STRESSES DISTRIBUTION UNDER THE FOUNDATION International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 2, March-April 2016, pp. 45-66, Article ID: IJCIET_07_02_004 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=2

More information

Earth Pressure and Retaining Wall Basics for Non-Geotechnical Engineers

Earth Pressure and Retaining Wall Basics for Non-Geotechnical Engineers PDHonline Course C155 (2 PDH) Earth Pressure and Retaining Wall Basics for Non-Geotechnical Engineers Instructor: Richard P. Weber, P.E. 2012 PDH Online PDH Center 5272 Meadow Estates Drive Fairfax, VA

More information

vulcanhammer.net This document downloaded from

vulcanhammer.net This document downloaded from This document downloaded from vulcanhammer.net since 1997, your source for engineering information for the deep foundation and marine construction industries, and the historical site for Vulcan Iron Works

More information

ESTIMATION OF UNDRAINED SETTLEMENT OF SHALLOW FOUNDATIONS ON LONDON CLAY

ESTIMATION OF UNDRAINED SETTLEMENT OF SHALLOW FOUNDATIONS ON LONDON CLAY International Conference on Structural and Foundation Failures August 2-4, 2004, Singapore ESTIMATION OF UNDRAINED SETTLEMENT OF SHALLOW FOUNDATIONS ON LONDON CLAY A. S. Osman, H.C. Yeow and M.D. Bolton

More information

Program COLANY Stone Columns Settlement Analysis. User Manual

Program COLANY Stone Columns Settlement Analysis. User Manual User Manual 1 CONTENTS SYNOPSIS 3 1. INTRODUCTION 4 2. PROBLEM DEFINITION 4 2.1 Material Properties 2.2 Dimensions 2.3 Units 6 7 7 3. EXAMPLE PROBLEM 8 3.1 Description 3.2 Hand Calculation 8 8 4. COLANY

More information

Module 5 (Lectures 17 to 19) MAT FOUNDATIONS

Module 5 (Lectures 17 to 19) MAT FOUNDATIONS Module 5 (Lectures 17 to 19) MAT FOUNDATIONS Topics 17.1 INTRODUCTION Rectangular Combined Footing: Trapezoidal Combined Footings: Cantilever Footing: Mat foundation: 17.2 COMMON TYPES OF MAT FOUNDATIONS

More information

BEARING CAPACITY AND SETTLEMENT RESPONSE OF RAFT FOUNDATION ON SAND USING STANDARD PENETRATION TEST METHOD

BEARING CAPACITY AND SETTLEMENT RESPONSE OF RAFT FOUNDATION ON SAND USING STANDARD PENETRATION TEST METHOD SENRA Academic Publishers, British Columbia Vol., No. 1, pp. 27-2774, February 20 Online ISSN: 0-353; Print ISSN: 17-7 BEARING CAPACITY AND SETTLEMENT RESPONSE OF RAFT FOUNDATION ON SAND USING STANDARD

More information

System. Stability. Security. Integrity. 150 Helical Anchor

System. Stability. Security. Integrity. 150 Helical Anchor Model 150 HELICAL ANCHOR System PN #MBHAT Stability. Security. Integrity. 150 Helical Anchor System About Foundation Supportworks is a network of the most experienced and knowledgeable foundation repair

More information

4.3 Results... 27 4.3.1 Drained Conditions... 27 4.3.2 Undrained Conditions... 28 4.4 References... 30 4.5 Data Files... 30 5 Undrained Analysis of

4.3 Results... 27 4.3.1 Drained Conditions... 27 4.3.2 Undrained Conditions... 28 4.4 References... 30 4.5 Data Files... 30 5 Undrained Analysis of Table of Contents 1 One Dimensional Compression of a Finite Layer... 3 1.1 Problem Description... 3 1.1.1 Uniform Mesh... 3 1.1.2 Graded Mesh... 5 1.2 Analytical Solution... 6 1.3 Results... 6 1.3.1 Uniform

More information

Lecture 4. Case Study of 16 th C Church in Old Goa

Lecture 4. Case Study of 16 th C Church in Old Goa Lecture 4 Case Study of 16 th C Church in Old Goa Case Study: 16 th C. Church in Goa,, India 16th C. Church in Goa,, India 16th C. Church in Goa,, India 13.4 m 15.2 m 12.5 m 2.7 m 9.0 m 2.7 m Unit weight

More information

INDIRECT METHODS SOUNDING OR PENETRATION TESTS. Dr. K. M. Kouzer, Associate Professor in Civil Engineering, GEC Kozhikode

INDIRECT METHODS SOUNDING OR PENETRATION TESTS. Dr. K. M. Kouzer, Associate Professor in Civil Engineering, GEC Kozhikode INDIRECT METHODS SOUNDING OR PENETRATION TESTS STANDARD PENETRATION TEST (SPT) Reference can be made to IS 2131 1981 for details on SPT. It is a field edtest to estimate e the penetration e resistance

More information

PDHonline Course S151A (1 PDH) Steel Sheet Piling. Instructor: Matthew Stuart, PE, SE. PDH Online PDH Center

PDHonline Course S151A (1 PDH) Steel Sheet Piling. Instructor: Matthew Stuart, PE, SE. PDH Online PDH Center PDHonline Course S151A (1 PDH) Steel Sheet Piling Instructor: Matthew Stuart, PE, SE 2012 PDH Online PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone & Fax: 703-988-0088 www.pdhonline.org

More information

DESIGN, INSTALLATION AND TESTING OF HELICAL PILES & ANCHORS. Presented by: Donald A. Deardorff, P.E. CHANCE Civil Construction Centralia, MO USA

DESIGN, INSTALLATION AND TESTING OF HELICAL PILES & ANCHORS. Presented by: Donald A. Deardorff, P.E. CHANCE Civil Construction Centralia, MO USA DESIGN, INSTALLATION AND TESTING OF HELICAL PILES & ANCHORS Presented by: Donald A. Deardorff, P.E. CHANCE Civil Construction Centralia, MO USA Historical Perspective 1 st Recorded Screw Pile was by Alexander

More information

EN 1997-1 Eurocode 7. Section 10 Hydraulic Failure Section 11 Overall Stability Section 12 Embankments. Trevor L.L. Orr Trinity College Dublin Ireland

EN 1997-1 Eurocode 7. Section 10 Hydraulic Failure Section 11 Overall Stability Section 12 Embankments. Trevor L.L. Orr Trinity College Dublin Ireland EN 1997 1: Sections 10, 11 and 12 Your logo Brussels, 18-20 February 2008 Dissemination of information workshop 1 EN 1997-1 Eurocode 7 Section 10 Hydraulic Failure Section 11 Overall Stability Section

More information

Geotechnical Investigation Test Report

Geotechnical Investigation Test Report Geotechnical Investigation Test Report Report No. htsc/rcd/ 3457 Dated: - 20/03/2010 Asphalt Standard Penetration Test as per IS 2131 ------------- IS 6403 Soil Job Card No - 1649 Cement Client/Department

More information

EXAMPLE 1 DESIGN OF CANTILEVERED WALL, GRANULAR SOIL

EXAMPLE 1 DESIGN OF CANTILEVERED WALL, GRANULAR SOIL EXAMPLE DESIGN OF CANTILEVERED WALL, GRANULAR SOIL A sheet pile wall is required to support a 2 excavation. The soil is uniform as shown in the figure. To take into account the friction between the wall

More information

Soil Mechanics. Soil Mechanics

Soil Mechanics. Soil Mechanics Soil is the most misunderstood term in the field. The problem arises in the reasons for which different groups or professions study soils. Soil scientists are interested in soils as a medium for plant

More information

K x ' Retaining. Walls ENCE 461. Foundation Analysis and Design. Mohr s Circle. and Lateral Earth. Pressures. Lateral Earth Pressure.

K x ' Retaining. Walls ENCE 461. Foundation Analysis and Design. Mohr s Circle. and Lateral Earth. Pressures. Lateral Earth Pressure. Lateral Earth Pressure Coefficient K x ' z ' K = lateral earth pressure coefficient x = horizontal effective stress Mohr s Circle and Lateral Earth Pressures x ' = = z ' ENCE 461 Foundation Analysis and

More information

ENGINEERING SCIENCE H1 OUTCOME 1 - TUTORIAL 3 BENDING MOMENTS EDEXCEL HNC/D ENGINEERING SCIENCE LEVEL 4 H1 FORMERLY UNIT 21718P

ENGINEERING SCIENCE H1 OUTCOME 1 - TUTORIAL 3 BENDING MOMENTS EDEXCEL HNC/D ENGINEERING SCIENCE LEVEL 4 H1 FORMERLY UNIT 21718P ENGINEERING SCIENCE H1 OUTCOME 1 - TUTORIAL 3 BENDING MOMENTS EDEXCEL HNC/D ENGINEERING SCIENCE LEVEL 4 H1 FORMERLY UNIT 21718P This material is duplicated in the Mechanical Principles module H2 and those

More information

Designed and Engineered to Perform

Designed and Engineered to Perform History EARTH CONTACT PRODUCTS, L.L.C., is a family owned company, based in Olathe, Kansas. This company was built upon Don May s U.S. Patented fourth-generation Steel Piering System that has led to the

More information

REINFORCED CONCRETE. Reinforced Concrete Design. A Fundamental Approach - Fifth Edition. Walls are generally used to provide lateral support for:

REINFORCED CONCRETE. Reinforced Concrete Design. A Fundamental Approach - Fifth Edition. Walls are generally used to provide lateral support for: HANDOUT REINFORCED CONCRETE Reinforced Concrete Design A Fundamental Approach - Fifth Edition RETAINING WALLS Fifth Edition A. J. Clark School of Engineering Department of Civil and Environmental Engineering

More information

DIRECT SHEAR TEST SOIL MECHANICS SOIL MECHANICS LABORATORY DEPARTMENT OF CIVIL ENGINEERING UNIVERSITY OF MORATUWA SRI LANKA

DIRECT SHEAR TEST SOIL MECHANICS SOIL MECHANICS LABORATORY DEPARTMENT OF CIVIL ENGINEERING UNIVERSITY OF MORATUWA SRI LANKA DIRECT SHEAR TEST SOIL MECHANICS SOIL MECHANICS LABORATORY DEPARTMENT OF CIVIL ENGINEERING UNIVERSITY OF MORATUWA SRI LANKA DIRECT SHEAR TEST OBJEVTIVES To determine the shear strength parameters for a

More information

Geotechnical Measurements and Explorations Prof. Nihar Ranjan Patra Department of Civil Engineering Indian Institute of Technology, Kanpur

Geotechnical Measurements and Explorations Prof. Nihar Ranjan Patra Department of Civil Engineering Indian Institute of Technology, Kanpur Geotechnical Measurements and Explorations Prof. Nihar Ranjan Patra Department of Civil Engineering Indian Institute of Technology, Kanpur Lecture No. # 13 (Refer Slide Time: 00:18) So last class, it was

More information

Effect of Gradation on Bearing Capacity and Settlement of Reinforced Sand

Effect of Gradation on Bearing Capacity and Settlement of Reinforced Sand Effect of Gradation on Bearing Capacity and Settlement of Reinforced Sand M. S. Dixit Research Scholar, Department of Civil Engineering, Government College of Engineering, Aurangabad (Maharashtra State),

More information

EFFECT OF GEOGRID REINFORCEMENT ON LOAD CARRYING CAPACITY OF A COARSE SAND BED

EFFECT OF GEOGRID REINFORCEMENT ON LOAD CARRYING CAPACITY OF A COARSE SAND BED International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 3, May June 2016, pp. 01 06, Article ID: IJCIET_07_03_001 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=3

More information

Appendix A Sub surface displacements around excavations Data presented in Xdisp sample file

Appendix A Sub surface displacements around excavations Data presented in Xdisp sample file Appendix A Sub surface displacements around excavations Data presented in Xdisp sample file Notation B1 = lowest level of basement slab c = cohesion E = drained Young s Modulus Eu = undrained Young s Modulus

More information

Helical Design Theory and Applications. By Darin Willis, P.E.

Helical Design Theory and Applications. By Darin Willis, P.E. Helical Design Theory and Applications By Darin Willis, P.E. Solution Systems Ram Jack utilizes two unique underpinning & anchoring systems Hydraulically driven piles (pressed) Helical piles (torqued)

More information

A N Beal EARTH RETAINING STRUCTURES - worked examples 1

A N Beal EARTH RETAINING STRUCTURES - worked examples 1 A N Beal EARTH RETAINING STRUCTURES - worked examples 1 Worked examples of retaining wall design to BS8002 The following worked examples have been prepared to illustrate the application of BS8002 to retaining

More information

Stress Analysis Verification Manual

Stress Analysis Verification Manual Settle3D 3D settlement for foundations Stress Analysis Verification Manual 007-01 Rocscience Inc. Table of Contents Settle3D Stress Verification Problems 1 Vertical Stresses underneath Rectangular Footings

More information

Estimation of Adjacent Building Settlement During Drilling of Urban Tunnels

Estimation of Adjacent Building Settlement During Drilling of Urban Tunnels Estimation of Adjacent Building During Drilling of Urban Tunnels Shahram Pourakbar 1, Mohammad Azadi 2, Bujang B. K. Huat 1, Afshin Asadi 1 1 Department of Civil Engineering, University Putra Malaysia

More information

MECHANICS OF SOLIDS - BEAMS TUTORIAL 2 SHEAR FORCE AND BENDING MOMENTS IN BEAMS

MECHANICS OF SOLIDS - BEAMS TUTORIAL 2 SHEAR FORCE AND BENDING MOMENTS IN BEAMS MECHANICS OF SOLIDS - BEAMS TUTORIAL 2 SHEAR FORCE AND BENDING MOMENTS IN BEAMS This is the second tutorial on bending of beams. You should judge your progress by completing the self assessment exercises.

More information

Module 7 (Lecture 24 to 28) RETAINING WALLS

Module 7 (Lecture 24 to 28) RETAINING WALLS Module 7 (Lecture 24 to 28) RETAINING WALLS Topics 24.1 INTRODUCTION 24.2 GRAVITY AND CANTILEVER WALLS 24.3 PROPORTIONING RETAINING WALLS 24.4 APPLICATION OF LATERAL EARTH PRESSURE THEORIES TO DESIGN 24.5

More information

CEEN 162 - Geotechnical Engineering Laboratory Session 7 - Direct Shear and Unconfined Compression Tests

CEEN 162 - Geotechnical Engineering Laboratory Session 7 - Direct Shear and Unconfined Compression Tests PURPOSE: The parameters of the shear strength relationship provide a means of evaluating the load carrying capacity of soils, stability of slopes, and pile capacity. The direct shear test is one of the

More information

Stability. Security. Integrity.

Stability. Security. Integrity. Stability. Security. Integrity. PN #MBHPT Foundation Supportworks provides quality helical pile systems for both new construction and retrofit applications. 288 Helical Pile System About Foundation Supportworks

More information

THE EFFECT OF IMPROVEMENT SURROUNDING SOIL ON BORED PILE FRICTION CAPACITY

THE EFFECT OF IMPROVEMENT SURROUNDING SOIL ON BORED PILE FRICTION CAPACITY International Journal of Civil Engineering and Technology (IJCIET) Volume 7, Issue 1, Jan-Feb 2016, pp. 260-273, Article ID: IJCIET_07_01_022 Available online at http://www.iaeme.com/ijciet/issues.asp?jtype=ijciet&vtype=7&itype=1

More information

STRUCTURES. 1.1. Excavation and backfill for structures should conform to the topic EXCAVATION AND BACKFILL.

STRUCTURES. 1.1. Excavation and backfill for structures should conform to the topic EXCAVATION AND BACKFILL. STRUCTURES 1. General. Critical structures may impact the integrity of a flood control project in several manners such as the excavation for construction of the structure, the type of foundation, backfill

More information

SIENA STONE GRAVITY RETAINING WALL INSTALLATION SPECIFICATIONS. Prepared by Risi Stone Systems Used by permission.

SIENA STONE GRAVITY RETAINING WALL INSTALLATION SPECIFICATIONS. Prepared by Risi Stone Systems Used by permission. SIENA STONE GRAVITY RETAINING WALL INSTALLATION SPECIFICATIONS Prepared by Risi Stone Systems Used by permission. 1-800-UNILOCK www.unilock.com FOREWORD This outline specification has been prepared for

More information

Copyright 2011 Casa Software Ltd. www.casaxps.com. Centre of Mass

Copyright 2011 Casa Software Ltd. www.casaxps.com. Centre of Mass Centre of Mass A central theme in mathematical modelling is that of reducing complex problems to simpler, and hopefully, equivalent problems for which mathematical analysis is possible. The concept of

More information

Period #16: Soil Compressibility and Consolidation (II)

Period #16: Soil Compressibility and Consolidation (II) Period #16: Soil Compressibility and Consolidation (II) A. Review and Motivation (1) Review: In most soils, changes in total volume are associated with reductions in void volume. The volume change of the

More information

Settlement of Precast Culverts Under High Fills; The Influence of Construction Sequence and Structural Effects of Longitudinal Strains

Settlement of Precast Culverts Under High Fills; The Influence of Construction Sequence and Structural Effects of Longitudinal Strains Settlement of Precast Culverts Under High Fills; The Influence of Construction Sequence and Structural Effects of Longitudinal Strains Doug Jenkins 1, Chris Lawson 2 1 Interactive Design Services, 2 Reinforced

More information

SOILS AND FOUNDATIONS Lesson 08

SOILS AND FOUNDATIONS Lesson 08 SOILS AND FOUNDATIONS Lesson 08 Chapter 8 Shallow Foundations Testing Theory Experience Topics gtopic 1 (Section 8.0, 8.1, 8.2, 8.3, 8.4) - General and Bearing Capacity gtopic 2 (Section 8.5, 8.6, 8.7,

More information

USE OF CONE PENETRATION TEST IN PILE DESIGN

USE OF CONE PENETRATION TEST IN PILE DESIGN PERIODICA POLYTECHNICA SER. CIV. ENG. VOL. 47, NO. 2, PP. 189 197 (23) USE OF CONE PENETRATION TEST IN PILE DESIGN András MAHLER Department of Geotechnics Budapest University of Technology and Economics

More information

CHAPTER 9 FEM MODELING OF SOIL-SHEET PILE WALL INTERACTION

CHAPTER 9 FEM MODELING OF SOIL-SHEET PILE WALL INTERACTION 391 CHAPTER 9 FEM MODELING OF SOIL-SHEET PILE WALL INTERACTION 9.1 OVERVIEW OF FE SOIL-STRUCTURE INTERACTION Clough and Denby (1969) introduced Finite Element analysis into the soil-structure interaction

More information

Improvement in physical properties for ground treated with rapid impact compaction

Improvement in physical properties for ground treated with rapid impact compaction International Journal of the Physical Sciences Vol. 6(22), pp. 5133-5140, 2 October 2011 Available online at http://www.academicjournals.org/ijps ISSN 1992-1950 2011 Academic Journals Full Length Research

More information

PART TWO GEOSYNTHETIC SOIL REINFORCEMENT. Martin Street Improvements, Fredonia, Wisconsin; Keystone Compac Hewnstone

PART TWO GEOSYNTHETIC SOIL REINFORCEMENT. Martin Street Improvements, Fredonia, Wisconsin; Keystone Compac Hewnstone GEOSYNTHETIC SOIL REINFORCEMENT Martin Street Improvements, Fredonia, Wisconsin; Keystone Compac Hewnstone DESIGN MANUAL & KEYWALL OPERATING GUIDE GEOSYNTHETIC SOIL REINFORCEMENT Keystone retaining walls

More information

Figure A-1. Figure A-2. continued on next page... HPM-1. Grout Reservoir. Neat Cement Grout (Very Flowable) Extension Displacement Plate

Figure A-1. Figure A-2. continued on next page... HPM-1. Grout Reservoir. Neat Cement Grout (Very Flowable) Extension Displacement Plate Addendum HELICAL PULLDOWN Micropile (HPM) Introduction The HPM is a system for constructing a grout column around the shaft of a standard Helical Screw Foundation (see Figure A1). To begin the process,

More information

Understanding Plastics Engineering Calculations

Understanding Plastics Engineering Calculations Natti S. Rao Nick R. Schott Understanding Plastics Engineering Calculations Hands-on Examples and Case Studies Sample Pages from Chapters 4 and 6 ISBNs 978--56990-509-8-56990-509-6 HANSER Hanser Publishers,

More information

Abstract. Keywords. Pouya Salari 1, Gholam Reza Lashkaripour 2*, Mohammad Ghafoori 2. Email: * lashkaripour@um.ac.ir

Abstract. Keywords. Pouya Salari 1, Gholam Reza Lashkaripour 2*, Mohammad Ghafoori 2. Email: * lashkaripour@um.ac.ir Open Journal of Geology, 2015, 5, 231-2 Published Online May 2015 in SciRes. http://www.scirp.org/journal/ojg http://dx.doi.org/./ojg.2015.55021 Presentation of Empirical Equations for Estimating Internal

More information

Specification Guidelines: Allan Block Modular Retaining Wall Systems

Specification Guidelines: Allan Block Modular Retaining Wall Systems Specification Guidelines: Allan Block Modular Retaining Wall Systems The following specifications provide Allan Block Corporation's typical requirements and recommendations. At the engineer of record's

More information

Report on. Wind Resistance of Signs supported by. Glass Fiber Reinforced Concrete (GFRC) Pillars

Report on. Wind Resistance of Signs supported by. Glass Fiber Reinforced Concrete (GFRC) Pillars Report on Wind Resistance of Signs supported by Glass Fiber Reinforced Concrete (GFRC) Pillars Prepared for US Sign and Fabrication Corporation January, 2006 SUMMARY This study found the attachment of

More information

BRIDGE DESIGN SPECIFICATIONS NOVEMBER 2003 SECTION 4 - FOUNDATIONS

BRIDGE DESIGN SPECIFICATIONS NOVEMBER 2003 SECTION 4 - FOUNDATIONS SECTION 4 - FOUNDATIONS Part A General Requirements and Materials 4.1 GENERAL Foundations shall be designed to support all live and dead loads, and earth and water pressure loadings in accordance with

More information

product manual HS-4210 HS-4210_MAN_09.08 Digital Static Cone Penetrometer

product manual HS-4210 HS-4210_MAN_09.08 Digital Static Cone Penetrometer HS-4210_MAN_09.08 product manual HS-4210 Digital Static Cone Penetrometer Introduction This Manual covers the measurement of bearing capacity using the Humboldt Digital Static Cone Penetrometer (DSCP).

More information

DESIGN OF SLABS. 3) Based on support or boundary condition: Simply supported, Cantilever slab,

DESIGN OF SLABS. 3) Based on support or boundary condition: Simply supported, Cantilever slab, DESIGN OF SLABS Dr. G. P. Chandradhara Professor of Civil Engineering S. J. College of Engineering Mysore 1. GENERAL A slab is a flat two dimensional planar structural element having thickness small compared

More information

DIRT DWELLING. and your. www.pinfoundations.com. Pin Foundations Inc., 2008

DIRT DWELLING. and your. www.pinfoundations.com. Pin Foundations Inc., 2008 DIRT and your DWELLING 2008 Pin Foundations Inc., 2008 If we accept that preserving soil in its native condition is necessary, then how do we build? Utilities? Roads? Foundations? Typical Strip, Transfer,

More information

RETAINING WALL CONSTRUCTION DETAILS 2006 ESTIMATING AND INSTALLATION MANUAL. Featuring Highland Stone. anchorwall.com

RETAINING WALL CONSTRUCTION DETAILS 2006 ESTIMATING AND INSTALLATION MANUAL. Featuring Highland Stone. anchorwall.com RETAINING WALL CONSTRUCTION DETAILS 2006 ESTIMATING AND INSTALLATION MANUAL 11 Featuring Highland Stone anchorwall.com TABLE OF CONTENTS 2 TABLE OF CONTENTS BEFORE YOU BEGIN............................

More information

Dimensional and Structural Data for Elliptical Pipes. PD 26 rev D 21/09/05

Dimensional and Structural Data for Elliptical Pipes. PD 26 rev D 21/09/05 Dimensional and Structural Data for Elliptical Pipes 21/09/05 Page 1 of 15 1. Foreword This document details a method for the structural design of Stanton Bonna Elliptical pipes for the common conditions

More information

ick Foundation Analysis and Design

ick Foundation Analysis and Design ick Foundation Analysis and Design Work: ick Foundation Location: Description: Prop: Detail analysis and design of ick patented foundation for Wind Turbine Towers Gestamp Hybrid Towers Date: 31/10/2012

More information

How to Design Helical Piles per the 2009 International Building Code

How to Design Helical Piles per the 2009 International Building Code ABSTRACT How to Design Helical Piles per the 2009 International Building Code by Darin Willis, P.E. 1 Helical piles and anchors have been used in construction applications for more than 150 years. The

More information

Prof. Dr. Hamed Hadhoud. Design of Water Tanks: Part (1)

Prof. Dr. Hamed Hadhoud. Design of Water Tanks: Part (1) Design of Water Tanks: Part (1) 1 Types of Tanks Elevated Tanks Resting on Soil & Underground Tanks Tank Walls Walls Shallow Medium Deep L/ L/ < & L/ >0.5 /L L L L 3 Shallow Walls L 1 m L/ (for same continuity

More information

Introduction to Spread Footings and Mat Foundations

Introduction to Spread Footings and Mat Foundations Introduction to Spread Footings and Mat Foundations Course No: G02-008 Credit: 2 PDH J. Paul Guyer, P.E., R.A., Fellow ASCE, Fellow AEI Continuing Education and Development, Inc. 9 Greyridge Farm Court

More information

Soil Strength. Performance Evaluation of Constructed Facilities Fall 2004. Prof. Mesut Pervizpour Office: KH #203 Ph: x4046

Soil Strength. Performance Evaluation of Constructed Facilities Fall 2004. Prof. Mesut Pervizpour Office: KH #203 Ph: x4046 ENGR-627 Performance Evaluation of Constructed Facilities, Lecture # 4 Performance Evaluation of Constructed Facilities Fall 2004 Prof. Mesut Pervizpour Office: KH #203 Ph: x4046 1 Soil Strength 2 Soil

More information

5/1/2013. Topics. The challenge is to better maintain native characteristics of soils during and after construction

5/1/2013. Topics. The challenge is to better maintain native characteristics of soils during and after construction PIN Foundations Topics Applications Design and Construction Flow Control Credits www.pinfoundations.com Copyright 2008, Pin Foundations, Inc. Curtis Hinman WSU Extension Faculty, Watershed Ecologist chinman@wsu.edu

More information

SPECIFICATIONS FOR PRECAST MODULAR BLOCK RETAINING WALL SYSTEM (revised 11/5/13)

SPECIFICATIONS FOR PRECAST MODULAR BLOCK RETAINING WALL SYSTEM (revised 11/5/13) Page 1 of 7 STONE STRONG SYSTEMS SPECIFICATIONS FOR PRECAST MODULAR BLOCK RETAINING WALL SYSTEM (revised ) PART 1: GENERAL 1.01 Description A. Work includes furnishing and installing precast modular blocks

More information

c. Borehole Shear Test (BST): BST is performed according to the instructions published by Handy Geotechnical Instruments, Inc.

c. Borehole Shear Test (BST): BST is performed according to the instructions published by Handy Geotechnical Instruments, Inc. Design Manual Chapter 6 - Geotechnical 6B - Subsurface Exploration Program 6B-2 Testing A. General Information Several testing methods can be used to measure soil engineering properties. The advantages,

More information

Laterally Loaded Piles

Laterally Loaded Piles Laterally Loaded Piles 1 Soil Response Modelled by p-y Curves In order to properly analyze a laterally loaded pile foundation in soil/rock, a nonlinear relationship needs to be applied that provides soil

More information

13.1 SCOPE...13-1 13.2 DEFINITIONS...13-1 13.3 NOTATION...13-1 13.4 DETERMINATION OF SOIL PROPERTIES...13-2

13.1 SCOPE...13-1 13.2 DEFINITIONS...13-1 13.3 NOTATION...13-1 13.4 DETERMINATION OF SOIL PROPERTIES...13-2 SECTION 13: FOUNDATION DESIGN TABLE OF CONTENTS 13 13.1 SCOPE...13-1 13.2 DEFINITIONS...13-1 13.3 NOTATION...13-1 13.4 DETERMINATION OF SOIL PROPERTIES...13-2 13.5 FOUNDATION BEARING CAPACITY...13-2 13.5.1

More information

Mat Foundations. 6.1 Introduction. 6.2 Combined Footings

Mat Foundations. 6.1 Introduction. 6.2 Combined Footings 6 Mat Foundations 6.1 Introduction Under normal conditions, square and rectangular footings such as those described in Chapters 3 and 4 are economical for supporting columns and walls. However, under certain

More information

Important Points: Timing: Timing Evaluation Methodology Example Immediate First announcement of building damage

Important Points: Timing: Timing Evaluation Methodology Example Immediate First announcement of building damage 3.3. Evaluation of Building Foundation Damage Basic Terminology: Damage: Destruction, deformation, inclination and settlement of a building foundation caused by an earthquake. Damage grade: Degree of danger

More information

LEGACY REPORT ER-5110. www.icc-es.org. ICC Evaluation Service, Inc. Reissued November 1, 2003. Legacy report on the 1997 Uniform Building Code

LEGACY REPORT ER-5110. www.icc-es.org. ICC Evaluation Service, Inc. Reissued November 1, 2003. Legacy report on the 1997 Uniform Building Code LEGACY REPORT Reissued November 1, 2003 ICC Evaluation Service, Inc. www.icc-es.org Business/Regional Office # 5360 Workman Mill Road, Whittier, California 90601 # (562) 699-0543 Regional Office # 900

More information

Geotechnical Investigation Reports and Foundation Recommendations - Scope for Improvement - Examples

Geotechnical Investigation Reports and Foundation Recommendations - Scope for Improvement - Examples Geotechnical Investigation Reports and Foundation Recommendations - Scope for Improvement - Examples Prof. V.S.Raju (Formerly: Director, IIT Delhi & Professor and Dean, IIT Madras) Email: rajuvs_b@yahoo.com

More information

CE-632 Foundation Analysis and Design

CE-632 Foundation Analysis and Design CE-63 Foundation Analysis and Design Pile Foundations 1 Indian Standards on Piles IS 911 : Part 1 : Sec 1 : 1979 Driven cast in-situ concrete piles IS 911 : Part 1 : Sec : 1979 Bored cast-in-situ piles

More information

SPECIFICATION FOR DYNAMIC CONSOLIDATION / DYNAMIC REPLACEMENT

SPECIFICATION FOR DYNAMIC CONSOLIDATION / DYNAMIC REPLACEMENT SPECIFICATION FOR DYNAMIC CONSOLIDATION / DYNAMIC REPLACEMENT 1.0 SOIL IMPROVEMENT 1.1 General Soil Investigation Information are provided in Part B1 annex as a guide to the Contractor for his consideration

More information

The Islamic university - Gaza Faculty of Engineering Civil Engineering Department CHAPTER (2) SITE INVESTIGATION. Instructor : Dr.

The Islamic university - Gaza Faculty of Engineering Civil Engineering Department CHAPTER (2) SITE INVESTIGATION. Instructor : Dr. The Islamic university - Gaza Faculty of Engineering Civil Engineering Department CHAPTER (2) SITE INVESTIGATION Instructor : Dr. Jehad Hamad Definition The process of determining the layers of natural

More information

Eurocode 7 - Geotechnical design - Part 2 Ground investigation and testing

Eurocode 7 - Geotechnical design - Part 2 Ground investigation and testing Brussels, 18-20 February 2008 Dissemination of information workshop 1 Eurocode 7 - Geotechnical design - Part 2 Ground investigation and testing Dr.-Ing. Bernd Schuppener, Federal Waterways Engineering

More information

Load and Resistance Factor Geotechnical Design Code Development in Canada. by Gordon A. Fenton Dalhousie University, Halifax, Canada

Load and Resistance Factor Geotechnical Design Code Development in Canada. by Gordon A. Fenton Dalhousie University, Halifax, Canada Load and Resistance Factor Geotechnical Design Code Development in Canada by Gordon A. Fenton Dalhousie University, Halifax, Canada 1 Overview 1. Past: Where we ve been allowable stress design partial

More information

VERTICAL MICROPILE LATERAL LOADING. Andy Baxter, P.G.

VERTICAL MICROPILE LATERAL LOADING. Andy Baxter, P.G. EFFICIENT DESIGN OF VERTICAL MICROPILE SYSTEMS TO LATERAL LOADING Dr. Jesús Gómez, P.E. PE Andy Baxter, P.G. Outline When are micropiles subject to lateral load? How do we analyze them? Shear Friction

More information

HOW TO DESIGN CONCRETE STRUCTURES Foundations

HOW TO DESIGN CONCRETE STRUCTURES Foundations HOW TO DESIGN CONCRETE STRUCTURES Foundations Instructions for the Members of BIBM, CEMBUREAU, EFCA and ERMCO: It is the responsibility of the Members (national associations) of BIBM, CEMBUREAU, EFCA and

More information

Structural Integrity Analysis

Structural Integrity Analysis Structural Integrity Analysis 1. STRESS CONCENTRATION Igor Kokcharov 1.1 STRESSES AND CONCENTRATORS 1.1.1 Stress An applied external force F causes inner forces in the carrying structure. Inner forces

More information

load on the soil. For this article s examples, load bearing values given by the following table will be assumed.

load on the soil. For this article s examples, load bearing values given by the following table will be assumed. How Many Piers? By Gary Collins, P.E. A clear-cut guide to helical pier spacing Introduction Helical pier spacing is not an exact science. How many does it take to support a structure adequately or repair

More information

ALLOWABLE LOADS ON A SINGLE PILE

ALLOWABLE LOADS ON A SINGLE PILE C H A P T E R 5 ALLOWABLE LOADS ON A SINGLE PILE Section I. BASICS 5-1. Considerations. For safe, economical pile foundations in military construction, it is necessary to determine the allowable load capacity

More information

Optimising plate girder design

Optimising plate girder design Optimising plate girder design NSCC29 R. Abspoel 1 1 Division of structural engineering, Delft University of Technology, Delft, The Netherlands ABSTRACT: In the design of steel plate girders a high degree

More information

Module 1 : Site Exploration and Geotechnical Investigation. Lecture 4 : In-situ tests [ Section 4.1: Penetrometer Tests ] Objectives

Module 1 : Site Exploration and Geotechnical Investigation. Lecture 4 : In-situ tests [ Section 4.1: Penetrometer Tests ] Objectives Lecture 4 : In-situ tests [ Section 4.1: Penetrometer Tests ] Objectives In this section you will learn the following Penetrometer Tests Standard penetration test Static cone penetration test Dynamic cone

More information

An Automatic Kunzelstab Penetration Test

An Automatic Kunzelstab Penetration Test An Automatic Kunzelstab Penetration Test Yongyuth Sirisriphet 1, Kitidech Santichaianant 2 1 Graduated student: Faculty of Industrial Education in and Technology. King Mongkut's University of Technology

More information

APPENDIX G SETTLEMENT

APPENDIX G SETTLEMENT APPENDIX G SETTLEMENT TABLE OF CONTENTS G.1 IN T R O D U C T IO N... 1 G.2 MATERIAL PLACEMENT AND COMPACTION... 1 G.2.1 Incom pressible M aterials... 1 G.2.2 Compressible Materials... 2 G.2.3 Soil P lacem

More information

Comprehensive Design Example 2: Foundations for Bulk Storage Facility

Comprehensive Design Example 2: Foundations for Bulk Storage Facility Comprehensive Design Example 2: Foundations for Bulk Storage Facility Problem The project consists of building several dry product storage silos near an existing rail siding in an open field presently

More information